Quote:
|
Originally Posted by qualhiveldorf
Fact#3 Very small particles of gold (in the 20 nm range) mixed into water can appear crimson or violet in color.
|
This can be accomplished with hollow gold nanospheres. Even more interesting is that if you change the thickness of the walls of the spheres they can change color from these crimson or violet colors, or even become completely transparent like water. Totally clear gold.
Edit: Also, gold and silver nanospheres are currently being studied to help restore sight to people who are visually impaired in certain ways.
http://www.solarisnano.com/vision.php
Quote:
|
Solaris Nanosciences is developing biologically active metallic nanostructures which can selectively bind within nanometers of the remaining healthy photoreceptors to dramatically enhance their light harvesting capability. By increasing the sensitivity of remaining photoreceptors, we hope to partially restore visual acuity for those people affected by AMD and DR.
|